Examples with ServerInfo org.opendaylight.controller.cluster.raft.persisted.ServerInfo used on opensource projects

Example 16 with ServerInfo

use of org.opendaylight.controller.cluster.raft.persisted.ServerInfo in project controller by opendaylight.

the class RaftActorServerConfigurationSupportTest method testOnApplyState.

@Test
public void testOnApplyState() {
    LOG.info("testOnApplyState starting");
    DefaultConfigParamsImpl configParams = new DefaultConfigParamsImpl();
    configParams.setHeartBeatInterval(new FiniteDuration(1, TimeUnit.DAYS));
    TestActorRef<MockRaftActor> noLeaderActor = actorFactory.createTestActor(MockRaftActor.builder().id(LEADER_ID).peerAddresses(ImmutableMap.of(FOLLOWER_ID, followerActor.path().toString())).config(configParams).persistent(Optional.of(false)).props().withDispatcher(Dispatchers.DefaultDispatcherId()), actorFactory.generateActorId(LEADER_ID));
    RaftActorServerConfigurationSupport support = new RaftActorServerConfigurationSupport(noLeaderActor.underlyingActor());
    ReplicatedLogEntry serverConfigEntry = new SimpleReplicatedLogEntry(1, 1, new ServerConfigurationPayload(Collections.<ServerInfo>emptyList()));
    boolean handled = support.handleMessage(new ApplyState(null, null, serverConfigEntry), ActorRef.noSender());
    assertEquals("Message handled", true, handled);
    ReplicatedLogEntry nonServerConfigEntry = new SimpleReplicatedLogEntry(1, 1, new MockRaftActorContext.MockPayload("1"));
    handled = support.handleMessage(new ApplyState(null, null, nonServerConfigEntry), ActorRef.noSender());
    assertEquals("Message handled", false, handled);
    LOG.info("testOnApplyState ending");
}

Example 17 with ServerInfo

use of org.opendaylight.controller.cluster.raft.persisted.ServerInfo in project controller by opendaylight.

the class RaftActorServerConfigurationSupportTest method testChangeToVotingWithNoLeader.

@Test
public void testChangeToVotingWithNoLeader() {
    LOG.info("testChangeToVotingWithNoLeader starting");
    DefaultConfigParamsImpl configParams = new DefaultConfigParamsImpl();
    configParams.setHeartBeatInterval(new FiniteDuration(100, TimeUnit.MILLISECONDS));
    configParams.setElectionTimeoutFactor(5);
    final String node1ID = "node1";
    final String node2ID = "node2";
    // Set up a persisted ServerConfigurationPayload. Initially node1 and node2 will come up as non-voting.
    // via the server config. The server config will also contain 2 voting peers that are down (ie no
    // actors created).
    ServerConfigurationPayload persistedServerConfig = new ServerConfigurationPayload(Arrays.asList(new ServerInfo(node1ID, false), new ServerInfo(node2ID, false), new ServerInfo("downNode1", true), new ServerInfo("downNode2", true)));
    SimpleReplicatedLogEntry persistedServerConfigEntry = new SimpleReplicatedLogEntry(0, 1, persistedServerConfig);
    InMemoryJournal.addEntry(node1ID, 1, new UpdateElectionTerm(1, "downNode1"));
    InMemoryJournal.addEntry(node1ID, 2, persistedServerConfigEntry);
    InMemoryJournal.addEntry(node1ID, 3, new ApplyJournalEntries(0));
    InMemoryJournal.addEntry(node2ID, 1, new UpdateElectionTerm(1, "downNode2"));
    InMemoryJournal.addEntry(node2ID, 2, persistedServerConfigEntry);
    InMemoryJournal.addEntry(node2ID, 3, new ApplyJournalEntries(0));
    ActorRef node1Collector = actorFactory.createActor(MessageCollectorActor.props(), actorFactory.generateActorId("collector"));
    TestActorRef<CollectingMockRaftActor> node1RaftActorRef = actorFactory.createTestActor(CollectingMockRaftActor.props(node1ID, ImmutableMap.<String, String>of(), configParams, PERSISTENT, node1Collector).withDispatcher(Dispatchers.DefaultDispatcherId()), node1ID);
    CollectingMockRaftActor node1RaftActor = node1RaftActorRef.underlyingActor();
    ActorRef node2Collector = actorFactory.createActor(MessageCollectorActor.props(), actorFactory.generateActorId("collector"));
    TestActorRef<CollectingMockRaftActor> node2RaftActorRef = actorFactory.createTestActor(CollectingMockRaftActor.props(node2ID, ImmutableMap.<String, String>of(), configParams, PERSISTENT, node2Collector).withDispatcher(Dispatchers.DefaultDispatcherId()), node2ID);
    CollectingMockRaftActor node2RaftActor = node2RaftActorRef.underlyingActor();
    node1RaftActor.waitForInitializeBehaviorComplete();
    node2RaftActor.waitForInitializeBehaviorComplete();
    // Verify the intended server config was loaded and applied.
    verifyServerConfigurationPayloadEntry(node1RaftActor.getRaftActorContext().getReplicatedLog(), nonVotingServer(node1ID), nonVotingServer(node2ID), votingServer("downNode1"), votingServer("downNode2"));
    assertEquals("isVotingMember", false, node1RaftActor.getRaftActorContext().isVotingMember());
    assertEquals("getRaftState", RaftState.Follower, node1RaftActor.getRaftState());
    assertEquals("getLeaderId", null, node1RaftActor.getLeaderId());
    verifyServerConfigurationPayloadEntry(node2RaftActor.getRaftActorContext().getReplicatedLog(), nonVotingServer(node1ID), nonVotingServer(node2ID), votingServer("downNode1"), votingServer("downNode2"));
    assertEquals("isVotingMember", false, node2RaftActor.getRaftActorContext().isVotingMember());
    // For the test, we send a ChangeServersVotingStatus message to node1 to flip the voting states for
    // each server, ie node1 and node2 to voting and the 2 down nodes to non-voting. This should cause
    // node1 to try to elect itself as leader in order to apply the new server config. Since the 2
    // down nodes are switched to non-voting, node1 should only need a vote from node2.
    // First send the message such that node1 has no peer address for node2 - should fail.
    ChangeServersVotingStatus changeServers = new ChangeServersVotingStatus(ImmutableMap.of(node1ID, true, node2ID, true, "downNode1", false, "downNode2", false));
    node1RaftActorRef.tell(changeServers, testKit.getRef());
    ServerChangeReply reply = testKit.expectMsgClass(testKit.duration("5 seconds"), ServerChangeReply.class);
    assertEquals("getStatus", ServerChangeStatus.NO_LEADER, reply.getStatus());
    assertEquals("getRaftState", RaftState.Follower, node1RaftActor.getRaftState());
    // Send an AppendEntries so node1 has a leaderId
    long term = node1RaftActor.getRaftActorContext().getTermInformation().getCurrentTerm();
    node1RaftActorRef.tell(new AppendEntries(term, "downNode1", -1L, -1L, Collections.<ReplicatedLogEntry>emptyList(), 0, -1, (short) 1), ActorRef.noSender());
    // Wait for the ElectionTimeout to clear the leaderId. The leaderId must be null so on the next
    // ChangeServersVotingStatus message, it will try to elect a leader.
    AbstractRaftActorIntegrationTest.verifyRaftState(node1RaftActorRef, rs -> assertEquals("getLeader", null, rs.getLeader()));
    // Update node2's peer address and send the message again
    node1RaftActor.setPeerAddress(node2ID, node2RaftActorRef.path().toString());
    node1RaftActorRef.tell(changeServers, testKit.getRef());
    reply = testKit.expectMsgClass(testKit.duration("5 seconds"), ServerChangeReply.class);
    assertEquals("getStatus", ServerChangeStatus.OK, reply.getStatus());
    ApplyJournalEntries apply = MessageCollectorActor.expectFirstMatching(node1Collector, ApplyJournalEntries.class);
    assertEquals("getToIndex", 1, apply.getToIndex());
    verifyServerConfigurationPayloadEntry(node1RaftActor.getRaftActorContext().getReplicatedLog(), votingServer(node1ID), votingServer(node2ID), nonVotingServer("downNode1"), nonVotingServer("downNode2"));
    assertEquals("isVotingMember", true, node1RaftActor.getRaftActorContext().isVotingMember());
    assertEquals("getRaftState", RaftState.Leader, node1RaftActor.getRaftState());
    apply = MessageCollectorActor.expectFirstMatching(node2Collector, ApplyJournalEntries.class);
    assertEquals("getToIndex", 1, apply.getToIndex());
    verifyServerConfigurationPayloadEntry(node2RaftActor.getRaftActorContext().getReplicatedLog(), votingServer(node1ID), votingServer(node2ID), nonVotingServer("downNode1"), nonVotingServer("downNode2"));
    assertEquals("isVotingMember", true, node2RaftActor.getRaftActorContext().isVotingMember());
    assertEquals("getRaftState", RaftState.Follower, node2RaftActor.getRaftState());
    LOG.info("testChangeToVotingWithNoLeader ending");
}

Example 18 with ServerInfo

use of org.opendaylight.controller.cluster.raft.persisted.ServerInfo in project controller by opendaylight.

the class ReplicationAndSnapshotsWithLaggingFollowerIntegrationTest method verifyInstallSnapshotToLaggingFollower.

/**
 * Resume the lagging follower 2 and verify it receives an install snapshot from the leader.
 */
private void verifyInstallSnapshotToLaggingFollower(long lastAppliedIndex, @Nullable ServerConfigurationPayload expServerConfig) throws Exception {
    testLog.info("verifyInstallSnapshotToLaggingFollower starting");
    MessageCollectorActor.clearMessages(leaderCollectorActor);
    // Now stop dropping AppendEntries in follower 2.
    follower2Actor.underlyingActor().stopDropMessages(AppendEntries.class);
    MessageCollectorActor.expectFirstMatching(leaderCollectorActor, SaveSnapshotSuccess.class);
    // Verify the leader's persisted snapshot. The previous snapshot (currently) won't be deleted from
    // the snapshot store because the second snapshot was initiated by the follower install snapshot and
    // not because the batch count was reached so the persisted journal sequence number wasn't advanced
    // far enough to cause the previous snapshot to be deleted. This is because
    // RaftActor#trimPersistentData subtracts the snapshotBatchCount from the snapshot's sequence number.
    // This is OK - the next snapshot should delete it. In production, even if the system restarted
    // before another snapshot, they would both get applied which wouldn't hurt anything.
    List<Snapshot> persistedSnapshots = InMemorySnapshotStore.getSnapshots(leaderId, Snapshot.class);
    Assert.assertTrue("Expected at least 1 persisted snapshots", persistedSnapshots.size() > 0);
    Snapshot persistedSnapshot = persistedSnapshots.get(persistedSnapshots.size() - 1);
    verifySnapshot("Persisted", persistedSnapshot, currentTerm, lastAppliedIndex, currentTerm, lastAppliedIndex);
    List<ReplicatedLogEntry> unAppliedEntry = persistedSnapshot.getUnAppliedEntries();
    assertEquals("Persisted Snapshot getUnAppliedEntries size", 0, unAppliedEntry.size());
    int snapshotSize = SerializationUtils.serialize(persistedSnapshot.getState()).length;
    final int expTotalChunks = snapshotSize / SNAPSHOT_CHUNK_SIZE + (snapshotSize % SNAPSHOT_CHUNK_SIZE > 0 ? 1 : 0);
    InstallSnapshot installSnapshot = MessageCollectorActor.expectFirstMatching(follower2CollectorActor, InstallSnapshot.class);
    assertEquals("InstallSnapshot getTerm", currentTerm, installSnapshot.getTerm());
    assertEquals("InstallSnapshot getLeaderId", leaderId, installSnapshot.getLeaderId());
    assertEquals("InstallSnapshot getChunkIndex", 1, installSnapshot.getChunkIndex());
    assertEquals("InstallSnapshot getTotalChunks", expTotalChunks, installSnapshot.getTotalChunks());
    assertEquals("InstallSnapshot getLastIncludedTerm", currentTerm, installSnapshot.getLastIncludedTerm());
    assertEquals("InstallSnapshot getLastIncludedIndex", lastAppliedIndex, installSnapshot.getLastIncludedIndex());
    // assertArrayEquals("InstallSnapshot getData", snapshot, installSnapshot.getData().toByteArray());
    List<InstallSnapshotReply> installSnapshotReplies = MessageCollectorActor.expectMatching(leaderCollectorActor, InstallSnapshotReply.class, expTotalChunks);
    int index = 1;
    for (InstallSnapshotReply installSnapshotReply : installSnapshotReplies) {
        assertEquals("InstallSnapshotReply getTerm", currentTerm, installSnapshotReply.getTerm());
        assertEquals("InstallSnapshotReply getChunkIndex", index++, installSnapshotReply.getChunkIndex());
        assertEquals("InstallSnapshotReply getFollowerId", follower2Id, installSnapshotReply.getFollowerId());
        assertEquals("InstallSnapshotReply isSuccess", true, installSnapshotReply.isSuccess());
    }
    // Verify follower 2 applies the snapshot.
    ApplySnapshot applySnapshot = MessageCollectorActor.expectFirstMatching(follower2CollectorActor, ApplySnapshot.class);
    verifySnapshot("Follower 2", applySnapshot.getSnapshot(), currentTerm, lastAppliedIndex, currentTerm, lastAppliedIndex);
    assertEquals("Persisted Snapshot getUnAppliedEntries size", 0, applySnapshot.getSnapshot().getUnAppliedEntries().size());
    // Wait for the snapshot to complete.
    MessageCollectorActor.expectFirstMatching(leaderCollectorActor, SaveSnapshotSuccess.class);
    // Ensure there's at least 1 more heartbeat.
    MessageCollectorActor.clearMessages(leaderCollectorActor);
    MessageCollectorActor.expectFirstMatching(leaderCollectorActor, AppendEntriesReply.class);
    // The leader should now have performed fake snapshots to advance the snapshot index and to trim
    // the log. In addition replicatedToAllIndex should've advanced.
    verifyLeadersTrimmedLog(lastAppliedIndex);
    if (expServerConfig != null) {
        Set<ServerInfo> expServerInfo = new HashSet<>(expServerConfig.getServerConfig());
        assertEquals("Leader snapshot server config", expServerInfo, new HashSet<>(persistedSnapshot.getServerConfiguration().getServerConfig()));
        assertEquals("Follower 2 snapshot server config", expServerInfo, new HashSet<>(applySnapshot.getSnapshot().getServerConfiguration().getServerConfig()));
        ServerConfigurationPayload follower2ServerConfig = follower2Context.getPeerServerInfo(true);
        assertNotNull("Follower 2 server config is null", follower2ServerConfig);
        assertEquals("Follower 2 server config", expServerInfo, new HashSet<>(follower2ServerConfig.getServerConfig()));
    }
    MessageCollectorActor.clearMessages(leaderCollectorActor);
    MessageCollectorActor.clearMessages(follower1CollectorActor);
    MessageCollectorActor.clearMessages(follower2CollectorActor);
    testLog.info("verifyInstallSnapshotToLaggingFollower complete");
}

Example 19 with ServerInfo

use of org.opendaylight.controller.cluster.raft.persisted.ServerInfo in project controller by opendaylight.

the class FollowerTest method testFollowerSchedulesElectionIfNonVoting.

@Test
public void testFollowerSchedulesElectionIfNonVoting() {
    MockRaftActorContext context = createActorContext();
    context.updatePeerIds(new ServerConfigurationPayload(Arrays.asList(new ServerInfo(context.getId(), false))));
    ((DefaultConfigParamsImpl) context.getConfigParams()).setHeartBeatInterval(FiniteDuration.apply(100, TimeUnit.MILLISECONDS));
    ((DefaultConfigParamsImpl) context.getConfigParams()).setElectionTimeoutFactor(1);
    follower = new Follower(context, "leader", (short) 1);
    ElectionTimeout electionTimeout = MessageCollectorActor.expectFirstMatching(followerActor, ElectionTimeout.class);
    RaftActorBehavior newBehavior = follower.handleMessage(ActorRef.noSender(), electionTimeout);
    assertSame("handleMessage result", follower, newBehavior);
    assertNull("Expected null leaderId", follower.getLeaderId());
}

Example 20 with ServerInfo

use of org.opendaylight.controller.cluster.raft.persisted.ServerInfo in project controller by opendaylight.

the class ClusterAdminRpcServiceTest method testFlipMemberVotingStatesWithVotingMembersDown.

@Test
public void testFlipMemberVotingStatesWithVotingMembersDown() throws Exception {
    String name = "testFlipMemberVotingStatesWithVotingMembersDown";
    // Members 4, 5, and 6 are initially non-voting and simulated as down by not starting them up.
    ServerConfigurationPayload persistedServerConfig = new ServerConfigurationPayload(Arrays.asList(new ServerInfo("member-1", true), new ServerInfo("member-2", true), new ServerInfo("member-3", true), new ServerInfo("member-4", false), new ServerInfo("member-5", false), new ServerInfo("member-6", false)));
    setupPersistedServerConfigPayload(persistedServerConfig, "member-1", name, "cars", "people");
    setupPersistedServerConfigPayload(persistedServerConfig, "member-2", name, "cars", "people");
    setupPersistedServerConfigPayload(persistedServerConfig, "member-3", name, "cars", "people");
    String moduleShardsConfig = "module-shards-member1-and-2-and-3.conf";
    final MemberNode leaderNode1 = MemberNode.builder(memberNodes).akkaConfig("Member1").testName(name).moduleShardsConfig(moduleShardsConfig).datastoreContextBuilder(DatastoreContext.newBuilder().shardHeartbeatIntervalInMillis(300).shardElectionTimeoutFactor(1)).build();
    final MemberNode replicaNode2 = MemberNode.builder(memberNodes).akkaConfig("Member2").testName(name).moduleShardsConfig(moduleShardsConfig).build();
    final MemberNode replicaNode3 = MemberNode.builder(memberNodes).akkaConfig("Member3").testName(name).moduleShardsConfig(moduleShardsConfig).build();
    leaderNode1.configDataStore().waitTillReady();
    leaderNode1.operDataStore().waitTillReady();
    verifyVotingStates(leaderNode1.configDataStore(), "cars", new SimpleEntry<>("member-1", TRUE), new SimpleEntry<>("member-2", TRUE), new SimpleEntry<>("member-3", TRUE), new SimpleEntry<>("member-4", FALSE), new SimpleEntry<>("member-5", FALSE), new SimpleEntry<>("member-6", FALSE));
    ClusterAdminRpcService service1 = new ClusterAdminRpcService(leaderNode1.configDataStore(), leaderNode1.operDataStore(), null);
    RpcResult<FlipMemberVotingStatesForAllShardsOutput> rpcResult = service1.flipMemberVotingStatesForAllShards().get(10, TimeUnit.SECONDS);
    FlipMemberVotingStatesForAllShardsOutput result = verifySuccessfulRpcResult(rpcResult);
    verifyShardResults(result.getShardResult(), successShardResult("cars", DataStoreType.Config), successShardResult("people", DataStoreType.Config), successShardResult("cars", DataStoreType.Operational), successShardResult("people", DataStoreType.Operational));
    // Members 2 and 3 are now non-voting but should get replicated with the new new server config.
    verifyVotingStates(new AbstractDataStore[] { leaderNode1.configDataStore(), leaderNode1.operDataStore(), replicaNode2.configDataStore(), replicaNode2.operDataStore(), replicaNode3.configDataStore(), replicaNode3.operDataStore() }, new String[] { "cars", "people" }, new SimpleEntry<>("member-1", FALSE), new SimpleEntry<>("member-2", FALSE), new SimpleEntry<>("member-3", FALSE), new SimpleEntry<>("member-4", TRUE), new SimpleEntry<>("member-5", TRUE), new SimpleEntry<>("member-6", TRUE));
    // The leader (member 1) was changed to non-voting but it shouldn't be able to step down as leader yet
    // b/c it can't get a majority consensus with all voting members down. So verify it remains the leader.
    verifyRaftState(leaderNode1.configDataStore(), "cars", raftState -> {
        assertNotNull("Expected non-null leader Id", raftState.getLeader());
        assertTrue("Expected leader member-1", raftState.getLeader().contains("member-1"));
    });
}